PFND3DDDI_FLUSH callback function (d3dumddi.h)
The Flush function submits outstanding hardware commands that are in the hardware command buffer to the display miniport driver.
Syntax
PFND3DDDI_FLUSH Pfnd3dddiFlush;
HRESULT Pfnd3dddiFlush(
HANDLE hDevice
)
{...}
Parameters
hDevice
A handle to the display device (graphics context).
Return value
Flush returns one of the following values:
| Return code | Description |
|---|---|
| S_OK | Hardware commands were successfully flushed. |
| E_OUTOFMEMORY | Flush could not allocate the required memory for it to complete. |
Remarks
The Microsoft Direct3D runtime can call the user-mode display driver's Flush function at any time to notify the user-mode display driver to submit any outstanding hardware commands that are in the hardware command buffer to the display miniport driver. However, a call to Flush should never cause the user-mode display driver to submit invalid commands to the display miniport driver.
To submit commands to the display miniport driver, the user-mode display driver's Flush function should typically call the runtime's pfnRenderCb function.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows Vista and later versions of the Windows operating systems. |
| Target Platform | Desktop |
| Header | d3dumddi.h (include D3dumddi.h) |